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madreJ [45]
3 years ago
8

A "principal square root" is always...

Mathematics
1 answer:
vladimir1956 [14]3 years ago
3 0

Really none of the above.  

A principal square root of a real number is a positive real number (or a positive real number times i, if you're up to complex numbers, but let's assume not.)  It's not necessarily a positive integer, √2 being the obvious example.

Is √2 a positive fraction?   We can write it as √2 / 1 so I suppose it is.  It's certainly not a rational number.  Even if we grant irrationals as fractions surely √0=0 isn't a positive fraction.  So "always" isn't correct.

I'd go with none of the above, but if I had to choose I'd choose D.


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Group the first two terms by underline the first two terms 16x^3-4x^2-4x+1
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Answer:

Terms are the things that are separated by a (+) or a (-).

Step-by-step explanation:

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7 0
2 years ago
(Ross, 4.78) A jar contains 4 white and 4 black marbles. We randomly choose 4 marbles. If 2 of them are white and 2 are black, w
KATRIN_1 [288]

Answer:

Step-by-step explanation:

Given

Jar contains 4 white and 4 black marbles

We randomly select 4 marbles out of which 2 are white and 2 are black

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The process is continue for n trails until we choose the correct order

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For exact n selection Probability is given by

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8 0
3 years ago
please help, I do not know how to do this at all! A restaurant has a large goldfish pond. Suppose that an inlet pipe and a hose
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Answer:

H = 20.5 hours

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I = time which the inlet pipe takes alone to fill the pond

H = time which the hose takes alone to fill the pond

10/I + 10/H = 10

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What quality of a rhombus makes it different from a parallelogram. Please wright in 2 sentences
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A parallelogram is a quadrilateral<span> or four-sided figure in which the </span>opposite sides are parallel. <span> A rhombus, on the other hand, may be defined as an equilateral parallelogram.</span>
3 0
3 years ago
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Eric is adding water to a 60
Archy [21]

Answer:

After 2.5 minutes the pool will have 27 gallons of water.

Step-by-step explanation:

The pool has already 12 gallons of water and Eric wants to fill it to at least 27 gallons.

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Therefore, after 2.5 minutes the pool will have 27 gallons of water. (Answer)

8 0
3 years ago
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